20165232 has 40 divisors (see below), whose sum is σ = 54837760. Its totient is φ = 6367680.

The previous prime is 20165231. The next prime is 20165239. The reversal of 20165232 is 23256102.

It is a super-2 number, since 2×20165232² = 813273163227648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20165199 and 20165208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20165231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10144 + ... + 11967.

It is an arithmetic number, because the mean of its divisors is an integer number (1370944).

Almost surely, 2^20165232 is an apocalyptic number.

It is an amenable number.

20165232 is an abundant number, since it is smaller than the sum of its proper divisors (34672528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20165232 is a wasteful number, since it uses less digits than its factorization.

20165232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22141 (or 22135 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 20165232 is about 4490.5714558394. The cubic root of 20165232 is about 272.1872269204.

The spelling of 20165232 in words is "twenty million, one hundred sixty-five thousand, two hundred thirty-two".